Rose plant 75-3831

ABSTRACT

A hybrid tea variety having red flowers, on long to medium stems, very mildew resistant foliage and very little fragrance.

This present invention relates to a new and distinct variety of roseplant of the hybrid tea class which was originated by me by crossing anunnamed variety with the variety Samantha, U.S. Plant Pat. No. 3,727.

The primary objective of this breeding was to produce a new rose varietycombining the non-fading red flower color of Samantha with flower formand disease resistance of the unnamed variety. This objective wassubstantially achieved along with other desirable improvements asevidenced by the following unique combination of characteristics whichare outstanding in the new variety and which distinguish it from itsparents as well as from all other varieties of which I am aware:

1. Very mildew resistant foliage.

2. Larger foliage than Samantha when grown in same environment.

3. Flowers at 20 to 25 petals which at maturity are more quilled thanthose of Samantha.

4. New foliage much lighter color than that of Samantha.

5. Red flower color very near that of Samantha, but with fewer whitestreaks on outer petals.

6. Very little fragrance.

7. Particularly suitable as a variety to be grown in greenhouses forproduction of cut blooms.

Asexual reproduction of this new variety by budding, as performed atWasco, Calif., shows that the foregoing characteristics and distinctionscome true to form and are established and transmitted through succeedingpropagations.

The accompanying illustration shows typical specimens of the vegetativegrowth and flowers of this new variety in different stages ofdevelopment, depicted in color as nearly true as it is reasonablypossible to make the same in a color illustration of this character.

The following is a detailed description of my new rose cultivar withcolor in terminology in accordance with the Royal Horticultural SocietyColour Chart except where ordinary dictionary significance of color isindicated.

Parentage:

Seed parent.--Unnamed variety.

Pollen parent.--Samantha, U.S. Plant Pat. No. 3,727.

Classification:

Botanical.--Rosa hybrid.

Commercial.--Hybrid tea.

FLOWER

Observations made from specimens grown in a greenhouse at Irvine,Calif., in August, 1980.

Blooming habit: Continuous.

Bud:

Size.--11/2" when petals start to unfurl.

Form.--Pointed ovoid, broad base.

Color.--When sepals first divide, near Red 47A, overlayed where firstexposed with Red-Purple 183B. When half blown, upper side of petals near45A, lower side of petals near Red 53C.

Sepals.--Color: Outer surface, Green 138B. Surface nearly smooth, havinga few stipitate glands. Three appendaged sepals, lightly appendaged. Twounappendaged sepals hairy edged.

Receptacle.--Color: Green 138B. Shape: Funnel. Size: Large. Surface:Smooth.

Peduncle.--Length: Long. Surface: Prickle, with very small prickles.Color: Light green. Strength: Stiff, slender.

Opening.--Outer petals fold outward and tips curl back.

Bloom:

Size.--Large. Average open size is 4" to 41/2".

Borne.--Single, or several together.

Stems.--Long to medium, normal strength.

Form.--When first open, high centered. Permanence: Outer petals edgesslightly curled and pointed.

Petalage.--Number of petals under normal conditions 20 to 25.

Color.--Center of flower: Upper side of petals near Red 45A; reverseside of petals near Red 53C; base of petals very small white area atpoint of attachment. General tonality from a distance, Red 45A.

Variegations.--Rarely a white streak at midrib of outer petals.

Discoloration.--General tonality at third day, no change, Red 45A.

Fragrance.--Very slight.

Petals:

Texture.--Thick.

Shape.--Round, to wider than long.

Form.--Edges slightly quilled.

Arrangement.--Loosely imbricated. Petaloids in center, few.

Persistence.--Drop off cleanly.

Lastingness.--On the plant, very long. As cut flower, very long.

Anthers.--Medium, many. Color: Yellow. Arrangement, regular aroundstyles.

Filaments.--Color: White.

Pollen.--Gold yellow.

Styles.--Color: Red.

Stigmas.--Color: White.

PLANT

Form: Bush.

Growth: Very vigorous.

Foliage: Number of leaflets on normal mid-stem leaves, 5 or 7.

Size.--Large.

Quantity.--Normal.

Color.--New foliage: Light green, heavily shaded or overlayed withpigment near Greyed Purple 183D. Old foliage, Green 137A.

Leaflets:

Shape.--Oval pointed.

Texture.--Upper side: Leathery.

Edge.--Serrated.

Serration.--Single, small.

Petiole.--Rachis: Color: Reddish. Underside: Prickles.

Stipules.--Long, bearded.

Disease resistance.--Very resistant to mildew under normal growingconditions at Irvine, Calif.

Wood:

New wood.--Color: Light green. Bark: Smooth.

Old wood.--Color: Green. Bark: Smooth.

Prickles:

Quantity.--On main stalks from base, ordinary. On laterals from stalks,ordinary.

Form.--Long base, hooked slightly downward.

Color when young.--Brown.

Position.--Irregular.

Small prickles:

Quantity.--On main stalks, none. On laterals, none.

I claim:
 1. A new and distinct variety of rose plant of the hybrid teaclass, substantially as herein shown and described, characterizedparticularly as to novelty by the unique combination of light colorednew growth, mildew resistant foliage, red flowers with 20 to 25 petalsand very little fragrance, particularly suitable for the production ofcut blooms in greenhouses.